I like the idea but why does it need to be in a watch? Why not a small thin credit card size object I can fit in my wallet or just drop it in any pocket I wish? All this hardware doesn't need to be in a watch for it to be useful.

I like the idea but why does it need to be in a watch? Why not a small thin credit card size object I can fit in my wallet or just drop it in any pocket I wish? All this hardware doesn't need to be in a watch for it to be useful.